2. Run up and down the stairs of your apartment building or house during a commercial break. (42 calories)

3. Stand in front of your couch, squat until your butt is just above the seat cushions, and hold that position for one minute. Repeat four times. (80 calories)

4. Lie down on the floor on your side and do leg lifts for five minutes. (50 calories)

5. Do arm circles for one minute. Repeat two more times. (20 calories)

6. Sprint to the bathroom, hover over the toilet seat while you pee, and sprint back. (30 calories)

7. Grab three-pound weights or two soup cans and do one minute each of lifting for your triceps (put your hands behind your head, with your elbows at your ears and lift the weight up and down). Do three sets. (17 calories)

8. Sit on an exercise ball and do one minute of ab curls. Repeat four times. (50 calories)

9. If you're not down with that, work your core by simply sitting on the ball for an hour. (38 calories)

10. Stand approximately five feet away from the TV and do lunges for five minutes. (37 calories)

11. Lie down in front of the TV and hold yourself in the plank position for one minute. Repeat two times. (35 calories)

12. Lie down on your couch and scoot around until your back is on the cushions and your legs are resting on the seat back, at a 90 degree angle to your waist. Curl your torso up towards your legs in a crunch and release. Keep doing them for an entire commercial break. (30 calories)